[gimp-help/wip/Jehan/ci-master-split: 7/20] build: add CI scripts to build a Windows installer for documentation.

[Jehan <jehanp src gnome org>]

commit 25616790577e6b125cdc5c1de3eacf539b73b475
Author: Jehan <jehan girinstud io>
Date:   Fri Mar 18 20:53:20 2022 +0100

    build: add CI scripts to build a Windows installer for documentation.
    
    The installation script takes most of its code (for installation of
    Unofficial lang files, etc.) from the CI script for GIMP installer.
    
    (cherry picked from commit b6bb2eae40d083c81e681fad2882d913cef53787)

 .gitlab-ci.yml                                     | 22 +++++++-
 .../windows/installer/installer-gimp-help-msys2.sh | 66 ++++++++++++++++++++++
 2 files changed, 87 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 73109b5c5..551ecb54c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,6 +3,7 @@ image: debian:testing
 stages:
   - prepare
   - build
+  - www
   - distribution
 
 variables:
@@ -75,7 +76,7 @@ build-debian-4:
     PDF_DIR: "_pdf4"
 
 www-debian:
-  stage: distribution
+  stage: www
   image: $CI_REGISTRY_IMAGE:build-debian-latest
   dependencies:
     - build-debian-1
@@ -104,3 +105,22 @@ www-debian:
     - mv _html2/* htdocs/2.10/
     - mv _html3/* htdocs/2.10/
     - mv _html4/* htdocs/2.10/
+
+win-installer:
+  variables:
+    CHERE_INVOKING: "yes"
+  tags:
+    - win32-ps
+  stage: distribution
+  dependencies:
+    - www-debian
+  artifacts:
+    name: "${CI_JOB_NAME}-${CI_COMMIT_REF_SLUG}"
+    when: always
+    expire_in: 1 week
+    paths:
+    - build/windows/installer/_Output
+    - installer.log
+  script:
+    - C:\msys64\usr\bin\pacman --noconfirm -Syyuu
+    - C:\msys64\usr\bin\bash -lc "bash -x ./build/windows/installer/installer-gimp-help-msys2.sh > 
installer.log 2>&1"
diff --git a/build/windows/installer/installer-gimp-help-msys2.sh 
b/build/windows/installer/installer-gimp-help-msys2.sh
new file mode 100644
index 000000000..8a1395b90
--- /dev/null
+++ b/build/windows/installer/installer-gimp-help-msys2.sh
@@ -0,0 +1,66 @@
+# Install Inno Setup.
+wget https://jrsoftware.org/download.php/is.exe
+./is.exe //SILENT //SUPPRESSMSGBOXES //CURRENTUSER //SP- //LOG="innosetup.log"
+
+# Install unofficial language files. These are translations of "unknown
+# translation quality or might not be maintained actively".
+# Cf. https://jrsoftware.org/files/istrans/
+ISCCDIR=`grep "Dest filename:.*ISCC.exe" innosetup.log | sed 's/.*Dest filename: *\|ISCC.exe//g'`
+ISCCDIR=`cygpath -u "$ISCCDIR"`
+mkdir -p "${ISCCDIR}/Languages/Unofficial"
+cd "${ISCCDIR}/Languages/Unofficial"
+
+download_lang ()
+{
+  langfile="$1"
+  rm -f "$langfile"
+  wget "https://raw.githubusercontent.com/jrsoftware/issrc/main/Files/Languages/Unofficial/$langfile";
+  downloaded="$?"
+  if [ $downloaded -ne 0 ]; then
+    echo "Download of '$langfile' failed."
+    exit 1
+  fi
+}
+
+add_bom ()
+{
+  langfile="$1"
+  file "$langfile" |grep "with BOM" 2>&1 > /dev/null
+  has_bom="$?"
+  if [ $has_bom -ne 0 ]; then
+    sed -i "1s/^/\xEF\xBB\xBF/" "$langfile"
+  fi
+}
+
+download_lang ChineseSimplified.isl
+download_lang Croatian.isl
+download_lang EnglishBritish.isl
+download_lang Greek.isl
+download_lang Korean.isl
+download_lang Lithuanian.isl
+download_lang NorwegianNynorsk.isl
+download_lang Romanian.isl
+download_lang Swedish.isl
+cd -
+
+# Copy generated language files into the source directory.
+#cp _build-w64/build/windows/installer/lang/*isl build/windows/installer/lang
+
+# Construct now the installer.
+MAJOR_VERSION=`grep 'm4_define(\[help_major_version' configure.ac |sed 
's/m4_define(\[help_major_version.*\[\([0-9]*\)\].*/\1/'`
+MINOR_VERSION=`grep 'm4_define(\[help_minor_version' configure.ac |sed 
's/m4_define(\[help_minor_version.*\[\([0-9]*\)\].*/\1/'`
+MICRO_VERSION=`grep 'm4_define(\[help_micro_version' configure.ac |sed 
's/m4_define(\[help_micro_version.*\[\([0-9]*\)\].*/\1/'`
+cd build/windows/installer
+./build.bat ${MAJOR_VERSION}.${MINOR_VERSION}.${MICRO_VERSION}
+
+# Test if the installer was created and return success/failure.
+if [ -f "_Output/gimp-help-${MAJOR_VERSION}.${MINOR_VERSION}.${MICRO_VERSION}-en-setup.exe" ]; then
+  cd _Output/
+  # TODO: do all langs.
+  INSTALLER="gimp-${MAJOR_VERSION}.${MINOR_VERSION}.${MICRO_VERSION}-en-setup.exe"
+  sha256sum $INSTALLER > ${INSTALLER}.SHA256SUMS
+  sha512sum $INSTALLER > ${INSTALLER}.SHA512SUMS
+  exit 0
+else
+  exit 1
+fi